The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2024
Filed:
Jul. 17, 2020
Applicant:
Hrl Laboratories, Llc, Malibu, CA (US);
Inventors:
Randall L. Kubena, Oak Park, CA (US);
Walter S. Wall, Calabasas, CA (US);
Assignee:
HRL LABORATORIES, LLC, Malibu, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 33/022 (2006.01); H03B 5/32 (2006.01); H10N 30/87 (2023.01); H10N 35/80 (2023.01); H10N 35/85 (2023.01);
U.S. Cl.
CPC ...
G01R 33/022 (2013.01); H03B 5/323 (2013.01); H10N 35/80 (2023.02); H10N 35/85 (2023.02); H10N 30/871 (2023.02);
Abstract
A magnetic gradiometer sensor comprising a substrate with at least a pair of resonators disposed thereon, wherein each of the at least a pair of resonators is coated with a magnetostrictive film. The resonators are preferably connected to sustaining circuits to form oscillators and the oscillators are preferably used within a phase lock loop to detect a difference in the magnetic field between the at least a pair of resonators.